Control device, control method, and recording medium for controlling channels

1. A control device comprising: a detector that detects a quality of a signal received by a first base station device and transmitted from a terminal device using a first channel; a channel setting controller that changes a reception channel of a second base station device from a second channel to the first channel when the detector detects a drop in the quality of the signal; and a selector that selects, from a plurality of base station devices other than the first base station device, a base station device having a communication area contiguous with a communication area of the first base station device, as the second base station device, wherein the channel setting controller changes the reception channel of the second base station device from the second channel to the first channel when the detector detects a drop in the quality of the signal and the second base station device is not receiving a signal in the second channel, or wherein the channel setting controller changes the reception channel of the second base station device from the second channel to the first channel when the detector detects a drop in the quality of the signal and the second base station device is receiving a signal from a further terminal device using the second channel, provided that a priority level of the terminal device is higher than a priority level of the further terminal device.

2. The control device according to claim 1 , further comprising: a storage that stores a plurality of channels that can be set as a reception channel of the second base station device, wherein the channel setting controller selects the first channel from the channels stored in the storage.

3. The control device according to claim 1 , wherein the channel setting controller does not change a transmission channel of the second base station device.

4. A control method comprising: detecting a quality of a signal received by a first base station device and transmitted from a terminal device using a first channel; changing a reception channel of a second base station device from a second channel to the first channel when a drop in the quality of the signal is detected; selecting, from a plurality of base station devices other than the first base station device, a base station device having a communication area contiguous with a communication area of the first base station device, as the second base station device, wherein the reception channel of the second base station device is changed from the second channel to the first channel when a drop in the quality of the signal is detected and the second base station device is not receiving a signal in the second channel, or wherein the reception channel of the second base station device is changed from the second channel to the first channel when a drop in the quality of the signal is detected and the second base station device is receiving a signal from a further terminal device using the second channel, provided that a priority level of the terminal device is higher than a priority level of the further terminal device.

5. A non-transitory computer-readable medium storing executable instructions that, in response to execution, cause a computer to perform operations comprising: detecting a quality of a signal received by a first base station device and transmitted from a terminal device using a first channel; changing a reception channel of a second base station device from a second channel to the first channel when a drop in the quality of the signal is detected; selecting, from a plurality of base station devices other than the first base station device, a base station device having a communication area contiguous with a communication area of the first base station device, as the second base station device, wherein the reception channel of the second base station device is changed from the second channel to the first channel when a drop in the quality of the signal is detected and the second base station device is not receiving a signal in the second channel, or wherein the reception channel of the second base station device is changed from the second channel to the first channel when a drop in the quality of the signal is detected and the second base station device is receiving a signal from a further terminal device using the second channel, provided that a priority level of the terminal device is higher than a priority level of the further terminal device.